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package main
import (
"github.com/gorilla/sessions"
"github.com/silvasur/mailremind/model"
"html/template"
"log"
"net/http"
)
type Handler func(user model.User, sess *sessions.Session, req *http.Request) (interface{}, model.User)
func getSess(req *http.Request) (*sessions.Session, error) {
sess, err := SessionStorage.Get(req, "mailremind-sess")
if err != nil {
sess, err = SessionStorage.New(req, "mailremind-sess")
}
return sess, err
}
func userFromSess(sess *sessions.Session) model.User {
_id, ok := sess.Values["uid"]
if !ok {
return nil
}
id, ok := _id.(string)
if !ok {
return nil
}
uid, err := db.ParseDBID(id)
if err != nil {
return nil
}
user, err := dbcon.UserByID(uid)
if err != nil {
return nil
}
return user
}
type tpldata struct {
Mail string
Data interface{}
}
func mkHttpHandler(h Handler, tpl *template.Template) http.HandlerFunc {
return func(rw http.ResponseWriter, req *http.Request) {
sess, err := getSess(req)
if err != nil {
req.Cookies()
log.Printf("Error while getting session: %s", err)
rw.Write([]byte("Unable to create a session. Try reloading the page or delete the cookies for this site."))
}
user := userFromSess(sess)
outdata, user := h(user, sess, req)
mail := ""
if user != nil {
mail = user.Email()
}
if err := sess.Save(req, rw); err != nil {
log.Printf("Error while saving session: %s", err)
}
if err := tpl.Execute(rw, &tpldata{mail, outdata}); err != nil {
log.Printf("Error executing template %s: %s", tpl.Name(), err)
}
}
}
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